chore: rename cameleer3 to cameleer

Rename Java packages from com.cameleer3 to com.cameleer, module
directories from cameleer3-* to cameleer-*, and all references
throughout workflows, Dockerfiles, docs, migrations, and pom.xml.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ui/src/auth/LoginPage.tsx

@@ -4,7 +4,7 @@ import { useAuthStore } from './auth-store';
 import { api } from '../api/client';
 import { config } from '../config';
 import { Card, Input, Button, Alert, FormField } from '@cameleer/design-system';
-import brandLogo from '@cameleer/design-system/assets/cameleer3-logo.svg';
+import brandLogo from '@cameleer/design-system/assets/cameleer-logo.svg';
 import styles from './LoginPage.module.css';
 
 interface OidcInfo {
@@ -121,7 +121,7 @@ export function LoginPage() {
         <div className={styles.loginForm}>
           <div className={styles.logo}>
             <img src={brandLogo} alt="" className={styles.logoImg} />
-            cameleer3
+            cameleer
           </div>
           <p className={styles.subtitle}>{subtitle}</p>
 

ui/src/auth/OidcCallback.tsx

@@ -72,7 +72,7 @@ export function OidcCallback() {
     <div className={styles.page}>
       <Card>
         <div className={styles.card}>
-          <h2 className={styles.heading}>cameleer3</h2>
+          <h2 className={styles.heading}>cameleer</h2>
           {loading && <Spinner />}
           {error && (
             <>